British Selenite Crystals Dorset UK Natural Gypsum Mineral Specimen 10-50mm Genuine Collector Display Stone with Certificate

British Selenite Crystals – Natural Gypsum from Dorset, UK

These genuine British Selenite crystals from Dorset, UK are natural gypsum mineral specimens, carefully selected for clarity, crystal form, and locality significance. Each piece measures approximately 10–50mm, making them ideal for collectors, educational study, and compact mineral displays. The photograph shows an example of the actual specimen you will receive. Please refer to the listing images for full sizing and expected variation within this range.

Your crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it is a 100% genuine natural mineral specimen.

Mineral Species & Chemical Composition

Selenite is the transparent to translucent crystalline variety of Gypsum, a hydrated calcium sulfate mineral with the chemical formula CaSO₄·2H₂O. It belongs to the sulfate mineral group and crystallises in the monoclinic crystal system.

Selenite commonly forms elongated, blade-like or tabular crystals with well-developed cleavage. Its name derives from the Greek word for moon, referencing its soft pearly lustre and luminous appearance when light passes through thinner sections.

Gypsum ranks 2 on the Mohs hardness scale, making it a relatively soft mineral that should be handled with care to preserve its natural crystal faces and edges.

Geological Formation – Dorset, United Kingdom

Dorset is well known for its rich geological heritage, particularly its sedimentary formations that span significant portions of Earth’s history. British Selenite crystals typically form in evaporite deposits where saline waters gradually evaporate in restricted basins or lagoon environments.

As mineral-rich waters concentrate, calcium sulfate precipitates and crystallises into gypsum. Over time, stable conditions allow the development of clear, well-defined Selenite crystals within sedimentary layers.

Dorset’s sedimentary environments, shaped by ancient marine conditions, provide suitable geological settings for gypsum formation. These British specimens carry added appeal for collectors interested in UK mineral localities.

Crystal Habit, Colour & Physical Properties

These British Selenite crystals display the classic characteristics of crystalline gypsum, often forming transparent to milky-white blades or prismatic sections.

Key mineralogical properties include:

• Mineral Group: Sulfate

• Species: Gypsum (Selenite variety)

• Chemical Formula: CaSO₄·2H₂O

• Crystal System: Monoclinic

• Colour: Colourless to white

• Lustre: Vitreous to pearly

• Transparency: Transparent to translucent

• Hardness: 2 Mohs

Selenite commonly exhibits perfect cleavage in one direction, meaning it can split into thin sheets. Natural surface striations, growth lines, and minor inclusions may be present and reflect the crystal’s sedimentary origin. These specimens have not been artificially treated or enhanced.

Collecting, Display & Educational Value

British Selenite crystals are highly appealing to collectors interested in UK mineral specimens and sedimentary geology. Their clarity and blade-like form make them attractive additions to mineral cabinets, display trays, or geological teaching collections.

Selenite is traditionally associated in spiritual practices with clarity and calm; these associations are cultural rather than scientific.

The 10–50mm size range makes these pieces suitable for individual display boxes, locality collections, or themed mineral assortments focused on British geology.

Authenticity & Individual Selection

Each British Selenite crystal is a carefully chosen genuine specimen from Dorset, UK. The listing photograph shows an example of the actual piece you will receive within the stated 10–50mm size range. Please review the images for scale and expected natural variation.

Every specimen is supplied with a Certificate of Authenticity lifetime guarantee generic card, confirming its genuine natural origin.

A classic example of British evaporite mineral formation, these Dorset Selenite crystals represent the sedimentary processes of ancient marine environments and offer a distinctive and locality-specific addition to any serious mineral collection.